import { fileURLToPath, URL } from 'node:url'

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import vueDevTools from 'vite-plugin-vue-devtools'
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'

// https://vite.dev/config/
export default defineConfig({
    plugins: [
        vue(),
        vueDevTools(),
        // 配置ElementPlus 按需自动引入插件
        AutoImport({
            resolvers: [ElementPlusResolver()],
        }),
        Components({
            // 1. 配置element-plus 采用sass样式配色系统
            resolvers: [ElementPlusResolver({
                importStyle: 'sass',
            })],
        }),
    ],
    resolve: {
        alias: { // 别名联想,实际编译时会把 @ 换成 ./src
            '@': fileURLToPath(new URL('./src', import.meta.url))
        },
    },
    css: {
        preprocessorOptions: {
            scss: {
                // 2. 自动导入定制化样式文件进行样式覆盖
                additionalData: `
                @use "@/styles/element/index.scss" as *;
                @use "@/styles/var.scss" as *; 
                `,
                // 在vite.config.js配置自动导入var.scss后，就不再需要: @import "@/styles/var";
            }
        }
    }
})
